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Publication #SL147

Bradford County: Soil Ratings for Selecting Pesticides 1

G.W. Hurt and T.A. Obreza2

Resource soil scientists with the USDA Natural Resources Conservation Service have rated the soils that are delineated by map units in the Bradford County Soil Survey Report1 for their potential for leaching and runoff of pesticides. The rating criteria are given in a companion publication entitled "Soil Ratings for Selecting Pesticides for Water Quality Goals." These soil ratings have been developed to help pesticide users determine the potential for pesticides to be lost to groundwater or surface water bodies.

As explained in Circular 9592, factors that determine pesticide leaching ratings in soil are permeability and the occurrence of mucky layers in the upper 80 inches of the soil. Soils rated High have a high potential for pesticides to leach to groundwater, soils rated Medium have a medium potential for pesticides to leach to groundwater, and soils rated Low have a low potential for pesticides to leach to groundwater. Factors that determine pesticide runoff ratings from soils arehydrologic group, permeability, and slope. Soils rated High have a high potential for pesticide runoff, soils rated Medium have a medium potential for pesticide runoff, and soils rated Low have a low potential for pesticide runoff.

NOTE: The user may discover that one or more map unit names in Table 1 have been updated from names given in the legend of the soil survey report1. For example, a soil map unit may be listed in the survey report with a single soil series name, whereas the same soil map unit is shown as comprising two or more soil series in the list in Table 1 (sequence numbers 1, 2, 3, ...) Where this occurs, the user should use the multi-named map unit given here, and make pesticide selections based on the most limiting condition to be found on the land in question. If necessary, the local Natural Resources Conservation Service office should be contacted to perform an on-site evaluation of the land in question.

REFERENCES

  1. Dearstyne, D.A., D.E. Leach, and K.J. Sullivan. 1991. Soil Survey of Bradford County, Florida. USDA/NRCS in cooperation with University of Florida Agricultural Experiment Stations.

  2. Obreza, T.A. and G. W. Hurt. 2006. Soil Ratings For Selecting Pesticides For Water Quality Goals. Circular 959, Soil and Water Science Department, Cooperative Extension Service, University of Florida, Gainesville, Florida, 32611. 5pp.

Tables

Table 1. 

Soil Ratings for Bradford County (see footnotes for explanations of column headings).

MUID

SEQ NUM

MUSYM

SOIL NAME

SOIL LEACH

SOIL RUNOFF

007002 1 2 Albany Medium Medium
007003 1 3 Ocilla Medium Medium
007004 1 4 Mascotte Medium High
007006 1 6 Plummer Medium High
007007 1 7 Surrency Medium High
007007 2 7 Pantego Low High
007008 1 8 Surrency Medium High
007008 2 8 Pantego Low High
007010 1 10 Osier High High
007012 1 12 Sapelo Medium High
007014 1 14 Pamlico Low High
007014 2 14 Croatan Low High
007016 1 16 Foxworth High Low
007017 1 17 Blanton Medium Low
007018 1 18 Lakeland High Low
007020 1 20 Grifton Low High
007020 2 20 Elloree Low High
007022 1 22 Chipley High Medium
007023 1 23 Pelham Medium High
007024 1 24 Starke Low High
007025 1 25 Fluvaquents Low High
007025 2 25 Ousley High High
007028 1 28 Arents High Medium
007029 1 29 Dorovan Low High
007030 1 30 Troup Medium Low
007034 1 34 Goldhead Medium High
007035 1 35 Wampee Medium Medium
007037 1 37 Pamlico Low High
007037 2 37 Croatan Low High
007039 1 39 Blanton Medium Medium
007041 1 41 Bonneau Medium Medium
007043 1 43 Dorovan Low High
Footnotes:
MUID = Natural Resources Conservation Service's map unit identifier.
SEQ NUM = Sequence Number, indicating a particular soil name among one or more names constituting a map unit name.
MUSYM = Map Unit Symbol from the soil map and legend in the Soil Survey of Bradford County, Florida. Note that if a MUSYM appears more than once in this list it signifies that two or more soils are co-dominant in that map unit, and each such soil is rated separately here.
SOIL NAME = Name of soil or other landscape component (urban land, made land, borrow pits, spoil banks, etc.).
SOIL LEACH = The rating of the soil for leaching of pesticides through the soil profile.
SOIL RUNOFF = The rating of the soil for runoff of pesticides from the soil surface.

NOTE: See "Soil Ratings for Selecting Pesticides for Water Quality Goals" (IFAS Extension Circular 959) for explanations of the criteria used to develop soil ratings presented in the right-hand four columns of this list.

Footnotes

1.

This document is SL147, a fact sheet of the Soil and Water Science Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: March 1999. Revised: September 2006. Reviewed June 2013. Please visit the EDIS website at http://edis.ifas.ufl.edu.

2.

G.W. Hurt, National Leader for Hydric Soils, Natural Resources Conservation Service, USDA; T.A. Obreza, Professor, Soil and Water Science Department, Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611.


The Institute of Food and Agricultural Sciences (IFAS) is an Equal Opportunity Institution authorized to provide research, educational information and other services only to individuals and institutions that function with non-discrimination with respect to race, creed, color, religion, age, disability, sex, sexual orientation, marital status, national origin, political opinions or affiliations. For more information on obtaining other UF/IFAS Extension publications, contact your county's UF/IFAS Extension office.

U.S. Department of Agriculture, UF/IFAS Extension Service, University of Florida, IFAS, Florida A & M University Cooperative Extension Program, and Boards of County Commissioners Cooperating. Nick T. Place, dean for UF/IFAS Extension.